如何使用Java代码获取访问点的MAC地址? [英] How do I get MAC address of a access point using java code?
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问题描述
我是Java初学者，我想帮助解决我的问题.我想使用Java语言检测访问点并显示访问点的mac地址.我有3个类别，只能检测主机的ip地址和mac地址.以下是我的代码.
head.java
公共 类
{
公共 静态 void main(字符串 [] args)抛出 InterruptedException
{
字符串 tracerserver = " ; 跟踪服务器地址
int timeRange = 1; // 以分钟为单位
System.out.println(" );
while (真)
{
尝试
{
tracer machine = 新 tracer();
// System.out.println("IP地址:" + machine.ipaddr());
// System.out.println("Mac地址:" + machine.macAddr());
字符串 requestParameters = " + machine.ipaddr()+ " + machine.macAddr()+ " ;
sender.sendGetRequest(tracerserver，requestParameters);
Thread.sleep((timeRange * 60000 ));
}
捕获(可抛出t)
{
System.err.println(" + t);
}
}
}
}
sender.java
导入 java.io.BufferedReader;
导入 java.io.InputStreamReader;
导入 java.net.*;
公共 类发件人
{
公共 sender(){}
公共 静态 字符串 sendGetRequest(字符串终结点，字符串 requestParameters)
{
字符串 result = null;
如果(endpoint.startsWith(" ))
{
// 向Servlet发送GET请求
尝试
{
字符串 urlStr =端点；
如果(requestParameters！= null&&requestParameters.length()> 0 )
{
urlStr + = " + requestParameters;
}
URL url = 新 URL(urlStr);
URLConnection conn = url.openConnection();
// 获取响应
BufferedReader rd = 新 BufferedReader(新 InputStreamReader(conn.getInputStream()));
StringBuffer sb = 新 StringBuffer();
字符串行；
while ((line = rd.readLine())！= null)
{
sb.append(line);
}
rd.close();
结果= sb.toString();
}
捕获(异常e)
{
e.printStackTrace();
}
}
返回结果；
}
}
tracer.java
导入 java.net.InetAddress;
导入 java.net.NetworkInterface;
导入 java.net.SocketException;
导入 java.net.UnknownHostException;
导入 com.sun.org.apache.xerces.internal.impl.dv.util.HexBin;
公共 类跟踪器
{
公共 tracer(){}
公共 字符串 ipaddr()
{
尝试
{
InetAddress localaddr = InetAddress.getLocalHost();
返回 localaddr.getHostAddress();
}
捕获(UnknownHostException e)
{
返回 " + e;
}
}
公共 字符串 macAddr()
{
尝试
{
InetAddress地址= InetAddress.getLocalHost();
NetworkInterface ni = NetworkInterface.getByInetAddress(address);
如果(ni！= null)
{
字节 [] mac = ni.getHardwareAddress();
如果(mac！= null)
{
字符串 aa = HexBin.encode(mac)；
字符串 ab = " ;
int a = 0;
int b = 2;
for ( int i = 0 ; i < mac.length; i ++)
{
ab + = aa.substring(a，b)+((i< mac.length- 1 )?" span> -": ") ;
a = a + 2;
b = b + 2;
}
返回 ab；
}
其他
{
返回 " ;
}
}
其他
{
找不到返回 " ;
}
}
捕获(UnknownHostException e)
{
e.printStackTrace();
}
捕获(SocketException e)
{
e.printStackTrace();
}
返回 null；
}
}
希望有人能帮助我解决这个问题.
解决方案
我想您可以进行tracert并从列表中报告的第一个跃点中检索IP地址.
先生，如果您已完成操作的话.请将代码发送给我，我的电子邮件ID.我已经尝试过，但是做不到. 我的电子邮件ID为< b > sana.asghar928@gmail.com < /b > 萨娜·阿斯加(Sana Asghar) 谢谢.
Hi, I''m a java beginner and I would like help to solve my problem. I want to use java language to detect an access point and display the mac address of the access point. I have 3 classes and can only detect ip address and mac address of a host. Below is my code.
head.java
public class head
{
public static void main(String[] args) throws InterruptedException
{
String tracerserver="http://127.0.0.1/eds/track.php";//tracker server address
int timeRange=1;//in minutes
System.out.println("Application running now...!");
while(true)
{
try
{
tracer machine = new tracer();
//System.out.println("Ip address: "+machine.ipaddr());
//System.out.println("Mac Address: "+machine.macAddr());
String requestParameters ="ip="+machine.ipaddr()+"&mac="+machine.macAddr()+"&point=3.223,2.93";
sender.sendGetRequest(tracerserver, requestParameters);
Thread.sleep((timeRange*60000));
}
catch(Throwable t)
{
System.err.println("Error:"+t);
}
}
}
}
sender.java
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.*;
public class sender
{
public sender(){}
public static String sendGetRequest(String endpoint, String requestParameters)
{
String result = null;
if (endpoint.startsWith("http://"))
{
//Send a GET request to the servlet
try
{
String urlStr = endpoint;
if (requestParameters != null && requestParameters.length () > 0)
{
urlStr += "?" + requestParameters;
}
URL url = new URL(urlStr);
URLConnection conn = url.openConnection ();
// Get the response
BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuffer sb = new StringBuffer();
String line;
while ((line = rd.readLine()) != null)
{
sb.append(line);
}
rd.close();
result = sb.toString();
}
catch (Exception e)
{
e.printStackTrace();
}
}
return result;
}
}
tracer.java
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import com.sun.org.apache.xerces.internal.impl.dv.util.HexBin;
public class tracer
{
public tracer(){}
public String ipaddr()
{
try
{
InetAddress localaddr = InetAddress.getLocalHost();
return localaddr.getHostAddress();
}
catch(UnknownHostException e)
{
return "Can't detect localhost : " + e;
}
}
public String macAddr()
{
try
{
InetAddress address = InetAddress.getLocalHost();
NetworkInterface ni = NetworkInterface.getByInetAddress(address);
if (ni != null)
{
byte[] mac = ni.getHardwareAddress();
if (mac != null)
{
String aa = HexBin.encode(mac) ;
String ab = "";
int a=0;
int b=2;
for (int i = 0; i < mac.length; i++)
{
ab+=aa.substring(a, b)+ ((i < mac.length - 1) ? "-" : "") ;
a=a+2;
b=b+2;
}
return ab;
}
else
{
return "Address doesn't exist or is not accessible.";
}
}
else
{
return "Network Interface for the specified address is not found.";
}
}
catch (UnknownHostException e)
{
e.printStackTrace();
}
catch (SocketException e)
{
e.printStackTrace();
}
return null;
}
}
Hope that somebody help me in this problem.
解决方案
I suppose you could do a tracert and retrieve the IP address from the first reported hop in the list.
Sir if you have done with it. kindly send me a code to my email id. i have tried but couldnt able to do it. my email id is <b>sana.asghar928@gmail.com</b> Sana Asghar thanks.
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